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Finding the Fourth Proportional to 525,196.74, 724,730.55 and 310,296.06

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Solution

The fourth proportional to 525,196.74, 724,730.55 and 310,296.06 is: 428,184.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,196.74 : 724,730.55 = 310,296.06 : x
  2. Step 2: Convert to fraction form
    525,196.74/724,730.55 = 310,296.06/x
  3. Step 3: Cross multiply
    525,196.74x = 724,730.55 × 310,296.06
  4. Step 4: Simplify right side
    525,196.74x = 224,881,034,226.63
  5. Step 5: Solve for x
    x = 224,881,034,226.63/525,196.74
  6. Step 6: Final answer
    x = 428,184.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.